Abstract: Embodiments include computing devices, apparatus, and methods implemented by the apparatus for constant current regulation for luminaires of an aircraft escapes slide lighting system. In various embodiments, a power source may be electrically connectable to a luminaire. The power source may be regulated, unregulated, rechargeable, and/or non-rechargeable. Each of a plurality of constant current regulator circuits may be integral to a luminaire having at least one LED. Each of the constant current regulator circuits may be electrically connected in parallel to a power source. A protection circuit may be configured to provide power surge and/or reverse polarity protection to the constant current regulator circuits as a centralized protection circuit, or a decentralized plurality of protection circuits, each corresponding to a constant current regulator circuit.

Abstract: Embodiments include computing devices, apparatus, and methods implemented by the apparatus for constant current regulation for luminaires of an aircraft escapes slide lighting system. In various embodiments, a power source may be electrically connectable to a luminaire. The power source may be regulated, unregulated, rechargeable, and/or non-rechargeable. Each of a plurality of constant current regulator circuits may be integral to a luminaire having at least one LED. Each of the constant current regulator circuits may be electrically connected in parallel to a power source. A protection circuit may be configured to provide power surge and/or reverse polarity protection to the constant current regulator circuits as a centralized protection circuit, or a decentralized plurality of protection circuits, each corresponding to a constant current regulator circuit.

Abstract: Embodiments include computing devices, apparatus, and methods implemented by the apparatus for constant current regulation for luminaires of an aircraft escapes slide lighting system. In various embodiments, each of a plurality of constant current regulator circuits may be integral to a luminaire having at least one LED. Each of the constant current regulator circuits may be electrically connected in parallel to a power source. A protection circuit may be configured to provide power surge and/or reverse polarity protection to the constant current regulator circuits as a centralized protection circuit, or a decentralized plurality of protection circuits, each corresponding to a constant current regulator circuit. Testing of the escapes slide lighting system having the constant current regulator circuits may provide an unambiguous indication of whether any of the luminaires are inoperative.

Abstract: A network of fixed RF transmitter modules, an RF repeater module and an RF collector module are located within a multi-unit facility for collecting water usage data from a plurality of water meters associated with the units within the facility and for uploading to a central billing center. Each water meter is coupled to a single RF transmitter module. Each RF transmitter module reads the water meter multiple times per day and transmits the data over a 418 MHZ carrier. One of a plurality of transceivers coupled to the RF repeater module receives the data and directs it to a storage medium in the RF repeater module. The RF repeater module temporarily holds the data and then repeats it on the RF carrier. The RF collector module receives the data through a transceiver coupled thereto. The data is stored in a storage medium of the RF collector module for retrieval by the central billing center.